AIR CONDITIONING DEVICE FOR VEHICLE

A control device of a vehicle air-conditioning apparatus has an outside air heat absorption heating mode in which a refrigerant that has been discharged from a compressor and has dissipated heat in a heating unit absorbs heat in an outdoor heat exchanger, and a combined heating mode in which the refrigerant that has been discharged from the compressor and has dissipated heat in the heating unit absorbs heat in the outdoor heat exchanger and a chiller heat exchanger, and upon switching from the combined heating mode to the outside air heat absorption heating mode, performs control in such a manner as to increase a degree of opening of a first electronic expansion valve to a given degree of opening, maintain the given degree of opening for a given period of time, and fully close a second electronic expansion valve within the given period of time.